Factor completely.144x2 - 240x + 100
A. 4(6x - 5)2
B. (24x - 20)(6x - 5)
C. 4(6x + 5)(6x - 5)
D. 4(36x2 - 60x + 25)
Answer: A
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Estimate the slope of the curve at the indicated point.
A. 2
B. - 
C. 
D. -2
Solve the problem.An experimental model for a suspension bridge is built. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers stand 60 inches apart. At a point between the towers and 15 inches along the road from the base of one tower, the cable is 2.25 inches above the roadway. Find the height of the towers.
A. 8.5 in. B. 9 in. C. 9.5 in. D. 11 in.
Determine whether the lines through each pair of points are perpendicular.(-10, 8) and (-14, 0); (1, 7) and (3, 3)
A. perpendicular B. not perpendicular
Find two sets of parametric equations for the given rectangular equation.y = 9x + 7
A. x = t, y = 9t + 7; -? < t < ?
x = 
, y = t + 7; -? < t < ?
B. x = 9t, y = t + 7; -? < t < ?
x = 
, y = t + 7; -? < t < ?
C. x = t, y = 9t + 7; -? < t < ?
x = 9t, y = t + 7; -? < t < ?
D. x = t, y = 9t + 7; -? < t < ?
x = t, y = 
+ 7; -? < t < ?